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    • 7. 发明授权
    • Method of detecting image information by photoelectric device
    • 光电设备检测图像信息的方法
    • US5260559A
    • 1993-11-09
    • US856738
    • 1992-03-24
    • Tsutomu Miyasaka
    • Tsutomu Miyasaka
    • G06K9/60H01L27/146H01J40/14
    • H01L27/146G06K9/60
    • A method of detecting image information which enables real-time extraction of mobile components of optical input image information in the form of electric current signals or real-time extraction of outlines of optical input image information in the form of electric current signals. The method uses a photoelectric device having a photoreception plane carrying arrays of pixels of a photosensitive material capable of directly converting an optical input signal into an electric current signal. The photosensitive material is endowed in itself with a differential responsivity which changes the level of the materials's output electric current in accordance with the rate of change in the incident light intensity of the optical input signal per unit time, so that only mobile components of the input image information are selectively and automatically detected in real time in the form of electric signals. It is also possible to extract only the profile component of the input image information, by oscillating, at a predetermined period, an optical system through which the optical input signal is irradiated on the photoelectric device so as to create a positional oscillation of the optical input signal on the photoreception surface or, alternatively, by oscillating the photoelectric device in directions parallel to the photoreception surface.
    • 一种检测图像信息的方法,其能够以电流信号的形式实时地提取光学输入图像信息的移动部件或以电流信号的形式实时提取光学输入图像信息的轮廓。 该方法使用具有光接收平面的光电装置,该光接收平面携带能够将光输入信号直接转换为电流信号的感光材料的像素阵列。 感光材料本身具有差异响应性,其根据每单位时间的光输入信号的入射光强度的变化率改变材料的输出电流的水平,使得仅输入的移动部件 图像信息以电信号的形式被实时选择性地和自动地检测。 也可以通过以预定的周期振荡光输入信号在光电装置上照射的光学系统,从而产生输入图像信息的轮廓分量,从而产生光输入的位置振荡 或者通过在与光接收表面平行的方向上振荡光电器件。